Editor behaves crazily when scrolling down

When I scroll down in the Matlab editor, the editor automatically scrolls back up so that I cannot work on the last lines in my script. After closing and reopening the script, it works fine for a while and then starts producing the same problem again. Any ideas what to do?

I'm using Matlab 2015a on a Macbook (OSX 10.10.4).

[HMS]

I'm having the same issue with the command window on my iMac with trackpad. clearing the command window will solve this (briefly) but once I have any multi-line output, it scrolls continuously to the top of that output

[Anna T]

I've also encountered the same issue. The command window starts automatically scrolling up until it eventually stops at a specific point (not at the top). Scrolling back down manually just re-initiates the automatic scrolling up to the same point. I'm running Matlab R2016a on El Capitan (OSX 10.11.3).

[StevePny]

This happened to me after inserting these lines, and then running to a debugging break point. After running to the break point (outside of the main loop), the editor forces the scroll back to the break point. R2014b (8.4.0.150421) 64bit (maci64)

% Make a movie:  
    filename='test_ani.gif';  
    drawnow  
    frame = getframe(1);  
    im = frame2im(frame);  
    [imind,cm] = rgb2ind(im,256);  
    if ii == 1;  
        imwrite(imind,cm,filename,'gif', 'Loopcount',inf);  
    else  
        imwrite(imind,cm,filename,'gif','WriteMode','append');  
    end

[Stephen]

I had a problem like this with a script as well. I closed Matlab and the re-opened it and the strange auto-scroll went away.

[Jennifer Thomas]

I just started having this issue, too. I just updated my 2012 MacBook Pro from OS 10.8 to 10.10. On OS 10.8, I was using Matlab 2012b without any problems for 4.5 years. Today, I started using Matlab 2014b with OS 10.10, and the scrolling issue began. It started when, while having a script open that is over 500 lines, I highlighted a few lines, clicked on them and "dragged them down" to the command window and ran them. The I could not scroll my script away from those lines, because it would just automatically scroll back. Clearing my command window did not stop the automatic scrolling. Upon exiting and restarting Matlab, I could scroll through the entire script again, BUT as soon as I once again highlighted text and dragged it to the command window and ran it, the automatic scrolling started again. This is very frustrating and essentially makes it so I cannot use Matlab. Please, is there a solution to this?

[Yolande Serra]

I also had this problem running OS 10.10 with Matlab 2014-2016. I now have a new MacBook Pro (2017) and am running Matlab 2017b. So far that problem has not returned, however there is now an issue with the horizontal scrolling. Using the trackpad on the MacBook if I scroll up or down and release the window shifts to the left, cutting off the first few characters of every line. I can use the arrows to move to the beginning of the line again, but it is very frustrating when looking over code to have to keep adjusting the text view in the window. I've tried adjusting the touchpad controls but nothing seems to work to not be so sensitive to horizontal position of fingers when I release from the trackpad. I don't have this issue in other programs that allow horizontal scrolling (as well as vertical).

[james haggerty]

I, too am having this horizontal scrolling issue that Yolande describes.

[Mark A]

I have the issue Yolande describes, and it's driving me nuts.

[Maxandre Jacqueline]

I have the same problem as Yolande Serra, and it is also driving me crazy! I hope someone has a fix!

[Jackson Crane]

I am also having the same problem as Yolande (and it's infuriating!). I spent awhile googling to no avail. Please let us know if there's a way to deactivate horizontal scrolling.

[Thaddeus]

Issue Yolande mentions here is distinct from the old autoscroll problem in this original (2015) post).

Horizontal scroll jump is still not fixed in 2018a though.

Answer 1

[John Greenwood]

Have just installed OS X El Capitan 10.11.6 as well, with Matlab 2016a, and am now having the same crazy scrolling problem. Am running on a 2012 iMac but had no issues with the previous installation of Matlab 2013a. Seriously annoying!

Answer 2

[Jiaxuan Li]

I met same issue. Matlab 2017b, OS X Yosemite 10.10.5. Another issue is that after I right click using trackpad, the right click menu disappears immediately.

Answer 3

[Varun Bhaskar]

Hi,

This behavior is a known issue in MATLAB. However, it has yet to be consistently reproduced by our developers. Could you provide me with more detailed instructions and/or code that can reproduce this issue?

[Jennifer Thomas]

It started happening to me when I upgraded my MacBook Pro operating system from 10.8 to 10.10. That made me have to also update my Matlab version. I tried both 2014b and 2017a, and I have the problem with both versions. It seems to, so far, only happen to me if I highlight text in a script from the editor window and drag it down to the command line and run it. After doing that, I cannot scroll in the editor to where I want, because it scrolls itself back to near the highlighted text. The only way to make it stop that worked for me was to exit Matlab and start over. I tried instead copying the highlighted text and pasting it into the command line, and that seemed to not cause the crazy scrolling issue.

Answer 4

[WCJHunter]

It is happening to me as well. Basically, if I get to 30 lines past the current command window size, it starts to auto-scroll back up to that point. That is to say, the 30th line line past the height of the command window gets forced to the last line in the window. And every time I type in a new character, it skips down to the current command line and then starts to auto-scroll back up to this point (30th line past the vertical size of window) in the command window. This point varies as I stretch the window. Of course, if I clear the window ("clc" or command-k on Mac), then it lets me continue to enter more commands until it reaches this magical point again.

Please resolve ASAP. It is starting to slow me down. Considering alternatives at this point.

[WCJHunter]

My version: 8.6.0.267246 (R2015b)

[Gregory Johnson]

Same thing here.

Answer 5

[Johannes]

Yes, I have it too. MacOSX, Matlab R2014b. I have not found a way to consistently reproduce this, it just happens sometimes, possibly when you have multiple editor tabs open and jump back and forth a lot. The tabbing is quite buggy too by the way, sometimes tabs disappear physically while still present when clicking on the + sign in the upper left corner of the editor.

Answer 6

[Alexia Nunez]

Extremely annoying. OS X El Capitan 10.11.6. MATLAB R2016a. The problem is not exclusive to MATLAB. It is also happening to me in Word. If I close the file in the editor and open it again it stops scrolling.

Answer 7

[Karin Lundengård]

Has happened to me before (both in Matlab2016a on El Capitaine and in previous versions). This time it happened when I was writing in a .txt file that we use when we construct systems biology models, and it happened right after saving (cmd+s). I had only changed one equation in the model, and it was to an equation I have used before without problems.

I do not remember what I was doing on the previous occations when i happened.

[Adam]

Same issue in 2017a with El Capitan 10.11.6

Answer 8

[mustafa uyar]

happend to me as well. solved by closing and oppening script

I am using macOS sierra. after I updated my mac and matla I realized that scroll speed increased and when i change scroll speed in system prefernces it didnt affected at all. Then today it did the keep scrolling up error. But if i scroll all the way down it just bounces there . happens in only editor window.if i let it go it stops around line 7 as first letter. If I change the edditor window size so i can only see 1-2 lines it bounces between lines7-8.My code length is 98 lines. And i just realized it only happens my open scripts from last session. closing and oppening that script solved the problem.

The problem might be caused by the algorithm that makes the editor scroll to the position from last session. For some reason it might be keep called again. so editor wants to go that line.

Answer 9

[Andrei Martinez-Finkelshtein]

Same here, and same solution: close and reopen the script. Mac OS X Sierra (10.12.5), Matlab R2017a (9.2.0.538062).